diff --git a/src/org/geometerplus/fbreader/book/Author.java b/src/org/geometerplus/fbreader/book/Author.java
index 3cafc1d18..23326e8b7 100644
--- a/src/org/geometerplus/fbreader/book/Author.java
+++ b/src/org/geometerplus/fbreader/book/Author.java
@@ -20,6 +20,8 @@
 package org.geometerplus.fbreader.book;
 
 public final class Author implements Comparable<Author> {
+	public static final Author NULL = new Author("", "");
+
 	public final String DisplayName;
 	public final String SortKey;
 
diff --git a/src/org/geometerplus/fbreader/book/Book.java b/src/org/geometerplus/fbreader/book/Book.java
index a83dfa073..fb9c4f815 100644
--- a/src/org/geometerplus/fbreader/book/Book.java
+++ b/src/org/geometerplus/fbreader/book/Book.java
@@ -34,7 +34,6 @@ import org.geometerplus.zlibrary.core.image.ZLImage;
 import org.geometerplus.zlibrary.text.view.ZLTextPosition;
 
 import org.geometerplus.fbreader.Paths;
-import org.geometerplus.fbreader.book.*;
 import org.geometerplus.fbreader.bookmodel.BookReadingException;
 import org.geometerplus.fbreader.formats.*;
 import org.geometerplus.fbreader.library.Library;
@@ -141,6 +140,18 @@ public class Book {
 		readMetaInfo(plugin);
 	}
 
+	public void updateFrom(Book book) {
+		if (myId != book.myId) {
+			return;
+		}
+		myTitle = book.myTitle;
+		myEncoding = book.myEncoding;
+		myLanguage = book.myLanguage;
+		myAuthors = book.myAuthors != null ? new ArrayList<Author>(book.myAuthors) : null;
+		myTags = book.myTags != null ? new ArrayList<Tag>(book.myTags) : null;
+		mySeriesInfo = book.mySeriesInfo;
+	}
+
 	public void reloadInfoFromFile() {
 		try {
 			readMetaInfo();
diff --git a/src/org/geometerplus/fbreader/library/AuthorListTree.java b/src/org/geometerplus/fbreader/library/AuthorListTree.java
new file mode 100644
index 000000000..049cb8513
--- /dev/null
+++ b/src/org/geometerplus/fbreader/library/AuthorListTree.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2009-2013 Geometer Plus <contact@geometerplus.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+package org.geometerplus.fbreader.library;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.geometerplus.fbreader.book.*;
+
+public class AuthorListTree extends FirstLevelTree {
+	AuthorListTree(RootTree root) {
+		super(root, ROOT_BY_AUTHOR);
+	}
+
+	@Override
+	public Status getOpeningStatus() {
+		return Status.ALWAYS_RELOAD_BEFORE_OPENING;
+	}
+
+	@Override
+	public void waitForOpening() {
+		clear();
+		for (Author a : Collection.authors()) {
+			createAuthorSubTree(a);
+		}
+	}
+
+	@Override
+	public boolean onBookEvent(BookEvent event, Book book) {
+		switch (event) {
+			default:
+			case Added:
+			{
+				final List<Author> bookAuthors = book.authors();
+				boolean changed = false;
+				if (bookAuthors.isEmpty()) {
+					changed &= createAuthorSubTree(Author.NULL);
+				} else for (Author a : Collection.authors()) {
+					changed &= createAuthorSubTree(a);
+				}
+				return changed;
+			}
+			case Removed:
+				// TODO: implement
+				return false;
+			case Updated:
+				// TODO: implement
+				return false;
+		}
+	}
+
+	private boolean createAuthorSubTree(Author author) {
+		final AuthorTree temp = new AuthorTree(Collection, author);
+		int position = Collections.binarySearch(subTrees(), temp);
+		if (position >= 0) {
+			return false;
+		} else {
+			new AuthorTree(this, author, - position - 1);
+			return true;
+		}
+	}
+}
diff --git a/src/org/geometerplus/fbreader/library/LibraryTree.java b/src/org/geometerplus/fbreader/library/LibraryTree.java
index 425b19327..0d4795bf6 100644
--- a/src/org/geometerplus/fbreader/library/LibraryTree.java
+++ b/src/org/geometerplus/fbreader/library/LibraryTree.java
@@ -142,6 +142,30 @@ public abstract class LibraryTree extends FBTree {
 		return !toRemove.isEmpty();
 	}
 
+	public boolean onBookEvent(BookEvent event, Book book) {
+		switch (event) {
+			default:
+			case Added:
+				return false;
+			case Removed:
+				return removeBook(book, true);
+			case Updated:
+			{
+				boolean changed = false;
+				for (FBTree tree : this) {
+					if (tree instanceof BookTree) {
+						final Book b = ((BookTree)tree).Book;
+						if (b.equals(book)) {
+							b.updateFrom(book);
+							changed = true;
+						}
+					}
+				}
+				return changed;
+			}
+		}
+	}
+
 	@Override
 	public int compareTo(FBTree tree) {
 		final int cmp = super.compareTo(tree);